All of the following are true about lipids except:
Correct answer: B. They are polymer of fatty acids
- A. They store a high amount of energy
- B. They are polymer of fatty acids
- C. They play important role in insulation
- D. They are mostly hydrophobic
Explanation
Option B is correct. Lipids are not polymers of fatty acids. A polymer is a molecule made up of repeating units of a smaller molecule, called a monomer. Fatty acids are not monomers, they are the building blocks of lipids. Lipids are a diverse group of molecules that include triglycerides, phospholipids, waxes, and steroids. Triglycerides are the most common type of lipid, and they are made up of three fatty acids attached to a glycerol molecule. Phospholipids are also made up of a glycerol molecule, but they also have a phosphate group and a fatty acid. Waxes are made up of fatty acids and long-chain alcohols. Steroids are a type of lipid that has a ring structure.
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